Finally, Sinbad also displays a Zugknick and changed migratory direction from southwest to southeast. It left the highlands of Ethiopia and is now heading to the coast. Let's see whether the bird then uses the African coast to migrate further south or whether it just crosses the sea to reach Madagascar!
Tuesday, December 14, 2010
Sinbad has changed direction!
Finally, Sinbad also displays a Zugknick and changed migratory direction from southwest to southeast. It left the highlands of Ethiopia and is now heading to the coast. Let's see whether the bird then uses the African coast to migrate further south or whether it just crosses the sea to reach Madagascar!
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Just to remind everyone... the transmitter does not transmit continuously, so the apparent jumps from one locale to another is probably more the product of the transmitter timing rather than the behaviour of the bird
ReplyDeletejust been looking at the trapping data. We have caught as breeders a relatively high percentage of the birds we marked as nestlings. This could mean a few things (none of which are mutually exclusive): global population is small, Oman is a good place for nesting, sooty falcons show natal fidelity. Sample size is small just now. No matter what it shows that Oman is important to sooty falcons
ReplyDeletethat is very intersting i agree..
ReplyDeletei think further research is needed to estimate the global population than enable us to estimate the right percentage Oman hold which by further analysis we can determine the reason of this.
Well the number of marked birds from Oman (almost 250) and the fact that we can recapture a good number each year would be a good basis for a study. If we could get people in other parts of the range to be marking nestlings, at least, that would be a great boost.
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